Grape phylloxera -- the insect that nearly wiped out wine production at the end of the 19th century in France -- hijacks a grape vine's reproductive programs to create a leaf gall, which it uses ..

Grape phylloxera — the insect that nearly wiped out wine production at the end of the 19th century in France — hijacks a grape vine's reproductive programs to create a leaf gall, which it uses as a pseudo apartment for the parasite to siphon off the plant's nutrients.